JP2012111815A - Resin composition for dry lubrication coat film formation - Google Patents
Resin composition for dry lubrication coat film formation Download PDFInfo
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本発明は、低摩擦摺動に適した乾性潤滑被膜形成用樹脂組成物に係り、更に詳しくは高温領域での熱処理なしに被膜形成することができ、耐久性に優れ低摩擦摺動に適した乾性潤滑被膜形成用樹脂組成物に関する。 The present invention relates to a resin composition for forming a dry lubricating film suitable for low friction sliding, and more specifically, can form a film without heat treatment in a high temperature region, and is excellent in durability and suitable for low friction sliding. The present invention relates to a resin composition for forming a dry lubricating film.
二つの部材が摺動可能に接しながら相対運動を行う場合、それら部材間には耐摩耗性や低摩擦性等の観点から高い潤滑性が求められる。この潤滑性の程度は、機器の種類、使用環境、摺動部材の表面状態などによって異なり、例えば、機械装置等では摺動部材間の潤滑剤として潤滑油やグリース等が使用されることが多い。しかし、使用環境によっては、潤滑油やグリース等が使用できない場合や、それらだけでは十分な摺動特性が得られない場合がある。 When two members make relative motion while slidably contacting each other, high lubricity is required between the members from the viewpoint of wear resistance, low friction, and the like. The degree of lubricity varies depending on the type of equipment, the usage environment, the surface condition of the sliding member, and the like. For example, in machinery and the like, lubricating oil or grease is often used as a lubricant between the sliding members. . However, depending on the usage environment, there may be cases where lubricating oil, grease, etc. cannot be used, or sufficient sliding characteristics may not be obtained by themselves.
そこで、上記のような使用環境の場合であっても摺動部材間の摺動特性の確保及び向上等を図るために、摺動部材の表面に固体潤滑剤からなる潤滑性被膜を設けることが一般的に広く行われている。しかしながら、固体潤滑剤を単体で部材表面に密着させることは困難である。そのため、通常はバインダー樹脂によって固体潤滑剤を部材表面に密着させることにより潤滑性被膜を形成している。 Therefore, in order to ensure and improve the sliding characteristics between the sliding members even in the case of the use environment as described above, a lubricating film made of a solid lubricant may be provided on the surface of the sliding members. Generally done widely. However, it is difficult to make the solid lubricant adhere to the surface of the member alone. For this reason, the lubricating coating is usually formed by bringing a solid lubricant into close contact with the surface of the member with a binder resin.
例えば、電子材料、精密機器、自動車、事務機器等の潤滑性を要求される部品では、その表面に潤滑性塗料を塗布して乾性潤滑被膜を形成することが広く行われている。このような乾性潤滑被膜の形成には、エポキシ樹脂やポリアミドイミド樹脂等の熱硬化性樹脂の溶液中に二硫化モリブデン、PTFE(ポリテトラフルオロエチレン)、グラファイト、窒化ホウ素のような固体潤滑剤の微粒子を分散した塗料が使用されている。 For example, in parts that require lubricity, such as electronic materials, precision equipment, automobiles, and office equipment, it is widely practiced to form a dry lubricating film by applying a lubricating paint to the surface. For the formation of such a dry lubricating film, a solid lubricant such as molybdenum disulfide, PTFE (polytetrafluoroethylene), graphite, or boron nitride is used in a solution of a thermosetting resin such as an epoxy resin or a polyamideimide resin. A paint in which fine particles are dispersed is used.
具体的には、特許文献1には、バインダー樹脂としてポリアミドイミド及びポリイミドの少なくとも一方を50〜73重量%含み、固体潤滑剤としてPTFEを3〜15重量%、二硫化モリブデンを20〜30重量%及びグラファイトを2〜8重量%の範囲で合計27〜50重量%添加してなる摺動樹脂組成物が記載されている。また、特許文献2には、バインダー樹脂としてエポキシ樹脂45〜65重量%と、防錆顔料2〜20重量%、PTFE2〜20重量%からなる潤滑性に優れた鉄系製品のコーティング組成物が開示されている。 Specifically, Patent Document 1 contains 50 to 73% by weight of at least one of polyamideimide and polyimide as a binder resin, 3 to 15% by weight of PTFE as a solid lubricant, and 20 to 30% by weight of molybdenum disulfide. And a sliding resin composition in which graphite is added in a total amount of 27 to 50% by weight in the range of 2 to 8% by weight. Patent Document 2 discloses a coating composition for iron-based products having an excellent lubricity consisting of 45 to 65% by weight of an epoxy resin as a binder resin, 2 to 20% by weight of a rust preventive pigment, and 2 to 20% by weight of PTFE. Has been.
しかし、上記乾性潤滑被膜形成用の組成物はバインダー樹脂として熱硬化性樹脂を用いていることから、乾性潤滑被膜を形成するには約200℃以上の高温領域で熱処理しなければならず、そのため高温焼成における部材材質などの硬度低下やコスト上昇等の問題があるため使用が制限される。また、得られる乾性潤滑被膜は、繰り返し摩擦による耐久性が十分でないという問題もあった。 However, since the composition for forming a dry lubricating film uses a thermosetting resin as a binder resin, it must be heat-treated in a high temperature region of about 200 ° C. or higher in order to form a dry lubricating film. Use is limited due to problems such as a decrease in hardness and cost increase in the material of the member at high temperature firing. Moreover, the dry lubricating film obtained has a problem that durability due to repeated friction is not sufficient.
本発明は、上記した従来技術の問題点に鑑みてなされたものであり、高温領域での熱処理を必要とせずに乾性潤滑被膜を形成することができ、耐摩耗性及び低摩擦係数等の摺動特性に優れると共に、繰り返し摩擦に対する耐久性や密着性などに優れた乾性潤滑被膜を形成することができる乾性潤滑被膜形成用樹脂組成物を提供することを目的とする。 The present invention has been made in view of the above-described problems of the prior art, and can form a dry lubricating film without the need for heat treatment in a high temperature region, and can provide a sliding property such as wear resistance and a low friction coefficient. An object of the present invention is to provide a resin composition for forming a dry lubricating film, which is excellent in dynamic characteristics and capable of forming a dry lubricating film excellent in durability against repeated friction and adhesion.
上記目的を達成するため、本発明が提供する乾性潤滑被膜形成用樹脂組成物は、金属表面への乾性潤滑被膜の形成に用いる樹脂組成物であって、常温乾燥型の被膜形成用樹脂、パウダー状フィラー、有機溶剤及び添加剤からなり、組成物全量に対して、5〜50質量%の常温乾燥型樹脂と、0.1〜5質量%の無機系パウダー状フィラーと、0.1〜1質量%の有機系パウダー状フィラーとを含むことを特徴とする。 In order to achieve the above object, a dry lubricating film forming resin composition provided by the present invention is a resin composition used for forming a dry lubricating film on a metal surface, and is a room temperature drying type film forming resin and powder. 5 to 50% by mass of a room temperature dry resin, 0.1 to 5% by mass of an inorganic powder filler, and 0.1 to 1% based on the total amount of the composition. It contains an organic powder filler of mass%.
本発明によれば、摩擦係数が低く、耐摩耗性等の摺動特性に優れると共に、繰り返し摩擦に対する耐久性や密着性にも優れた乾性潤滑被膜を、高温領域での熱処理を必要とせずに、簡単に形成することができる。また、乾性潤滑被膜の摩擦係数が低減されることによって、各種損失の低減による効率化を図ると共に、発熱による摺動部の昇温及び音鳴り抑制の効果も期待することができる。従って、本発明の乾性潤滑被膜形成用樹脂組成物は、苛酷な摺動条件下で使用される機器の摺動部材用として最適である。 According to the present invention, a dry lubricating film having a low coefficient of friction, excellent sliding characteristics such as wear resistance, and excellent durability and adhesion to repeated friction can be obtained without requiring heat treatment in a high temperature region. Can be formed easily. In addition, by reducing the friction coefficient of the dry lubricating coating, it is possible to improve efficiency by reducing various losses, and to expect the effect of suppressing the temperature rise and noise from the sliding portion due to heat generation. Therefore, the resin composition for forming a dry lubricating film of the present invention is optimal for a sliding member of equipment used under severe sliding conditions.
本発明に係る乾性潤滑被膜形成用樹脂組成物は、基本的に、常温乾燥型の被膜形成用樹脂と、無機系パウダー状フィラー及び有機系パウダー状フィラーの2種類のパウダー状フィラーと、有機溶剤及び添加剤とを含んでいる。尚、ここで常温乾燥型の被膜形成用樹脂とは、被膜を形成し該被膜中に各種フィラーを保持する樹脂(バインダー樹脂とも言う)であって、積極的に高温加熱しなくても、常温(一般的に10〜35℃程度)で乾燥するだけで固化するものを意味する。 The dry lubricating film forming resin composition according to the present invention basically includes a room temperature drying type film forming resin, two kinds of powder fillers, an inorganic powder filler and an organic powder filler, and an organic solvent. And additives. Here, the room temperature drying type film forming resin is a resin that forms a film and holds various fillers in the film (also referred to as a binder resin). It means one that solidifies only by drying (generally about 10 to 35 ° C.).
常温乾燥型樹脂は、無機系フィラー及び有機系フィラーを金属部材の表面に保持する被膜の主体となる成分である。常温乾燥型樹脂としては、例えば、フッ素樹脂、アクリルウレタン樹脂、ケトン樹脂、アクリル樹脂、石油樹脂、ウレタン樹脂、ポリエステル樹脂等が好適に使用できる。特にフッ素樹脂は、溶剤可溶性及びフィラー分散性が良好であり、金属表面との密着性が高く、摺動特性に優れているため特に好ましく、その中でもフルオロエチレン・ビニルエーテル交互共重合体のフッソ樹脂を使用することが特に好ましい。 The room temperature dry resin is a component that is a main component of the coating film that holds the inorganic filler and the organic filler on the surface of the metal member. For example, a fluororesin, an acrylic urethane resin, a ketone resin, an acrylic resin, a petroleum resin, a urethane resin, or a polyester resin can be suitably used as the room temperature dry resin. In particular, fluororesins are particularly preferred because they have good solvent solubility and filler dispersibility, high adhesion to the metal surface, and excellent sliding properties. Among them, fluoroethylene / vinyl ether alternating copolymer fluororesins are preferred. It is particularly preferred to use it.
上記常温乾燥型樹脂の配合量は、組成物全量に対して5〜50質量%とする。常温乾燥型樹脂の配合量が5重量%未満では、パウダー状フィラーの分散安定性が低下する。逆に配合量が50質量%を超えると、液粘性が高くなるため、塗布時のレベリング性が低下して低摩擦性を阻害する結果となる。 The blending amount of the room temperature dry resin is 5 to 50% by mass with respect to the total amount of the composition. When the blending amount of the room temperature dry resin is less than 5% by weight, the dispersion stability of the powder filler is lowered. On the other hand, if the blending amount exceeds 50% by mass, the liquid viscosity becomes high, so that the leveling property at the time of application is lowered and the low friction property is hindered.
パウダー状フィラーは、摩擦係数の低減と優れた耐摩耗性の発現に寄与するものであり、無機系パウダー状フィラーと有機系パウダー状フィラーの2種類を組み合わせて使用する。パウダー状フィラーは、無機系か有機系か又は製法などによって異なるが、平均粒子径が0.5〜30μmの微粒子であることが好ましい。パウダー状フィラーの平均粒子径が0.5μm未満では耐摩耗性が悪くなり、逆に30μmを超えると塗装面が粗くなり潤滑性を阻害することになりやすいためである。 The powder filler contributes to the reduction of the friction coefficient and the development of excellent wear resistance, and is used in combination of two kinds of inorganic powder filler and organic powder filler. The powder filler is preferably an inorganic or organic type or a fine particle having an average particle size of 0.5 to 30 μm, although it varies depending on the production method. This is because if the average particle size of the powdery filler is less than 0.5 μm, the wear resistance is deteriorated, whereas if it exceeds 30 μm, the coated surface becomes rough and the lubricity tends to be hindered.
上記無機系パウダー状フィラーとしては、酸化亜鉛、シリコーン、モリブデン、グラファイト、マイカ、ダイヤモンド、タルク、窒化ホウ素、酸化チタン等を使用することができる。特にシリコーンパウダーは摺動特性の点で優れている。シリコーンパウダーの具体例としては、ポリメチルシルセスキオキサン(CH3SiO15)からなる平均粒子径2μmの真球状のものがあり、耐摩耗性及び潤滑性に優れている。 As the inorganic powder filler, zinc oxide, silicone, molybdenum, graphite, mica, diamond, talc, boron nitride, titanium oxide, or the like can be used. In particular, silicone powder is excellent in terms of sliding characteristics. As a specific example of the silicone powder, there is a true sphere having an average particle diameter of 2 μm made of polymethylsilsesquioxane (CH 3 SiO 15 ), which is excellent in wear resistance and lubricity.
また、上記有機系パウダー状フィラーとしては、ナイロン、PTFE、ウレタン、ポリエチレン、アクリル等が挙げられる。その中でも、ナイロンパウダーとポリエチレンパウダーが摺動特性の点から好ましい。ナイロンパウダーの具体例としては平均粒子径が5μmの真球状のものが、またポリエチレンパウダーの具体例としては平均粒子径が30μmで真球状の超高分子量ポリエチレンパウダーがあり、共に耐摩耗性及び潤滑性に優れている。 Examples of the organic powder filler include nylon, PTFE, urethane, polyethylene, and acrylic. Among these, nylon powder and polyethylene powder are preferable from the viewpoint of sliding properties. Specific examples of nylon powder include true spheres with an average particle diameter of 5 μm, and specific examples of polyethylene powder include ultra-high molecular weight polyethylene powder with an average particle diameter of 30 μm, both wear resistance and lubrication. Excellent in properties.
上記無機系パウダー状フィラーの配合量は、組成物全量に対して0.1〜5質量%とする。無機系パウダー状フィラーの配合量が0.1質量%未満では、乾性潤滑被膜の低摩擦係数化が不十分となり、逆に1質量%を超えて配合すると耐摩耗性が低下する。また、上記有機系パウダー状フィラーの配合量は、組成物全量に対して0.1〜1.0質量%とする。有機系パウダー状フィラーの配合量が0.1質量%未満では乾性潤滑被膜の低摩擦係数化が不十分となり、逆に1.0質量%を超えて配合すると耐摩耗性が低下する。 The compounding quantity of the said inorganic type powder-form filler shall be 0.1-5 mass% with respect to the composition whole quantity. If the blending amount of the inorganic powder filler is less than 0.1% by mass, the friction coefficient of the dry lubricating film will be insufficient, and conversely if it exceeds 1% by mass, the wear resistance will be reduced. Moreover, the compounding quantity of the said organic type powdery filler shall be 0.1-1.0 mass% with respect to the composition whole quantity. If the blending amount of the organic powder filler is less than 0.1% by mass, the dry lubricating coating will not be sufficiently reduced in friction coefficient. Conversely, if it exceeds 1.0% by mass, the wear resistance will be reduced.
上記無機系パウダー状フィラーと有機系パウダー状フィラーを組み合わせることで両者の特徴を生かすことができるうえ、両者の配合量を変えることによって目的に沿った要求性能の樹脂組成物を得ることができる。例えば、無機系パウダー状フィラーの配合量を増やせば潤滑性が向上する傾向となりやすく、逆に有機系パウダー状フィラーの配合量を増やせば耐摩耗性が向上する傾向が得られる。従って、両者の配合量を調整することで、目的に沿った要求性能の組成物を得ることができる。 By combining the inorganic powder filler and the organic powder filler, the characteristics of both can be utilized, and a resin composition having required performance in accordance with the purpose can be obtained by changing the blending amount of both. For example, if the blending amount of the inorganic powder filler is increased, the lubricity tends to be improved. Conversely, if the blending amount of the organic powder filler is increased, the wear resistance tends to be improved. Therefore, by adjusting the blending amount of both, a composition having the required performance according to the purpose can be obtained.
尚、本発明の乾性潤滑被膜形成用樹脂組成物は、上記した各成分以外に、被膜形成用樹脂を溶解するための有機溶剤と、当該分野で通常使用されている各種添加剤を含んでいる。有機溶剤としては、炭酸ジメチル、プロピレングリコールモノメチルエーテル等を好適に使用することができる。また、添加剤としては、分散性や塗装性、膜質改善などの目的に応じて、界面活性剤、再凝集防止剤、湿潤分散剤、レベリング剤、沈降防止剤等を使用することができる。特に界面活性剤又は再凝集防止剤を添加する場合には、いずれも組成物全量に対して0.1〜5質量%の範囲で配合することが好ましい。 The dry lubricating film forming resin composition of the present invention contains, in addition to the above-described components, an organic solvent for dissolving the film forming resin and various additives usually used in the field. . As the organic solvent, dimethyl carbonate, propylene glycol monomethyl ether, or the like can be suitably used. As the additive, a surfactant, a reaggregation inhibitor, a wetting and dispersing agent, a leveling agent, an antisettling agent, and the like can be used depending on purposes such as dispersibility, paintability, and film quality improvement. In particular, when a surfactant or a reaggregation inhibitor is added, it is preferable to add any of them in the range of 0.1 to 5% by mass with respect to the total amount of the composition.
本発明の樹脂組成物による乾性潤滑被膜は、通常の潤滑性塗料と同様の方法で形成することが可能である。即ち、基材となる金属材料の表面に、材質や目的に合わせた公知の方法で前処理を実施した後、スプレー、刷け塗り、浸漬、タンブリング等の方法で樹脂組成物を塗布した後、常温で10分以上乾燥させることにより乾性潤滑被膜を得ることができる。塗布した樹脂組成物の乾燥の際には、積極的に加熱する必要はないが、乾燥時間を短縮する場合には50℃程度までの加熱雰囲気中で乾燥することが好ましい。 The dry lubricating film of the resin composition of the present invention can be formed by the same method as that for ordinary lubricating paints. That is, after performing a pretreatment on the surface of the metal material to be a base material by a known method according to the material and purpose, after applying a resin composition by a method such as spraying, printing, dipping, tumbling, A dry lubricating film can be obtained by drying at room temperature for 10 minutes or more. When the applied resin composition is dried, it is not necessary to positively heat it, but when shortening the drying time, it is preferable to dry in a heating atmosphere up to about 50 ° C.
[実施例1]
常温乾燥型の被膜形成用樹脂としてフッ素樹脂(フルオロエチレン・ビニルエーテル交互共重合体)10質量%と、無機系パウダー状フィラーとして微粒子シリコーンパウダー2質量%と、有機系パウダー状フィラーとして微粒子ナイロンパウダー0.3質量%に、添加剤として湿潤分散剤、レベリング剤、沈降防止剤を各2.5質量%添加し、更に溶剤として炭酸ジメチル80.2質量%を加え、各成分を十分に撹拌分散させて実施例1の樹脂組成物を作製した。
[Example 1]
10% by mass of fluororesin (fluoroethylene / vinyl ether alternating copolymer) as a resin for forming a film at room temperature drying type, 2% by mass of fine silicone powder as an inorganic powder filler, and fine nylon powder 0 as an organic powder filler Add 2.5 wt% each of wetting and dispersing agents, leveling agents, and anti-settling agents as additives, and add 80.2 wt% of dimethyl carbonate as a solvent, and thoroughly stir and disperse each component. Thus, the resin composition of Example 1 was produced.
得られた実施例1の樹脂組成物について、表面性試験装置を使用して潤滑性能を評価した。表面性試験は、ボールと板状試験片で点接触における摩擦特性を評価する試験方法であり、材質がSUJ−2で直径が10mmのボールと、材質がSPCC−Bで寸法が縦150×横70×厚さ0.8mmの板状試験片を使用した。表面性試験の設定条件は、摺動速度1200mm/分、摺動距離100mm、荷重1kgfとし、移動方式は単動にて、静摩擦係数と平均動摩擦係数を測定した。 About the obtained resin composition of Example 1, the lubricating performance was evaluated using a surface property test apparatus. The surface property test is a test method for evaluating the friction characteristics in a point contact with a ball and a plate-shaped test piece. A plate-shaped test piece having a thickness of 70 × 0.8 mm was used. The setting conditions of the surface property test were a sliding speed of 1200 mm / min, a sliding distance of 100 mm, a load of 1 kgf, and the moving method was single acting, and the static friction coefficient and the average dynamic friction coefficient were measured.
具体的には、上記実施例1の樹脂組成物を板状試験片に室温でエアスプレーによりコーティングし、室温で約15分乾燥して乾性潤滑被膜を形成した。得られたテストピースの乾性潤滑被膜について、上記表面性試験装置で潤滑性能を評価した結果、静摩擦係数は0.08及び平均動摩擦係数は0.06であった。 Specifically, the resin composition of Example 1 was coated on a plate-shaped test piece by air spray at room temperature, and dried at room temperature for about 15 minutes to form a dry lubricating film. With respect to the dry lubricating film of the obtained test piece, the lubricating performance was evaluated by the above surface property test apparatus. As a result, the static friction coefficient was 0.08 and the average dynamic friction coefficient was 0.06.
[実施例2]
常温乾燥型の被膜形成用樹脂としてフッ素樹脂(フルオロエチレン・ビニルエーテル交互共重合体)10質量%と、無機系パウダー状フィラーとして微粒子シリコーンパウダー2質量%と、有機系パウダー状フィラーとして超高分子量ポリエチレンパウダー0.3質量%に、添加剤として湿潤分散剤、レベリング剤、沈降防止剤を各2.5質量%添加し、更に溶剤として炭酸ジメチル80.2質量%を加え、各成分を十分に分散させて実施例2の樹脂組成物を作製した。
[Example 2]
10% by mass of fluororesin (alternate copolymer of fluoroethylene and vinyl ether) as a resin for forming a film at room temperature drying type, 2% by mass of fine particle silicone powder as an inorganic powder filler, and ultrahigh molecular weight polyethylene as an organic powder filler Wet dispersant, leveling agent and anti-settling agent are added to 0.3% by mass of powder, and 2.5% by mass of dimethyl carbonate is added as a solvent, and the components are fully dispersed. Thus, the resin composition of Example 2 was produced.
得られた実施例2の樹脂組成物を板状試験片に室温でエアスプレーによりコーティングし、室温で約15分乾燥して乾性潤滑被膜を形成した。得られたテストピースの乾性潤滑被膜について、上記実施例1と同様に表面性試験装置により潤滑性能を評価した結果、静摩擦係数は0.09及び平均動摩擦係数は0.07であった。 The obtained resin composition of Example 2 was coated on a plate-shaped test piece by air spray at room temperature and dried at room temperature for about 15 minutes to form a dry lubricating film. About the dry lubricating film of the obtained test piece, as a result of evaluating the lubricating performance with a surface property test apparatus in the same manner as in Example 1, the static friction coefficient was 0.09 and the average dynamic friction coefficient was 0.07.
[比較例1]
常温乾燥型の被膜形成用樹脂としてフッ素樹脂(フルオロエチレン・ビニルエーテル交互共重合体)10質量%と、無機系パウダー状フィラーとして微粒子シリコーンパウダー8質量%と、有機系パウダー状フィラーとしてナイロンパウダー2質量%に、添加剤として湿潤分散剤、レベリング剤、沈降防止剤を各5質量%添加し、更に溶剤として炭酸ジメチル65質量%を加え、各成分を十分に分散させて比較例1の樹脂組成物を作製した。
[Comparative Example 1]
10% by mass of fluororesin (fluoroethylene / vinyl ether alternating copolymer) as a room temperature drying type film-forming resin, 8% by mass of fine particle silicone powder as an inorganic powder filler, and 2% of nylon powder as an organic powder filler %, 5% by weight each of a wetting and dispersing agent, a leveling agent, and an anti-settling agent are added as additives, and 65% by weight of dimethyl carbonate is further added as a solvent to sufficiently disperse each component, and the resin composition of Comparative Example 1 Was made.
得られた比較例1の樹脂組成物を板状試験片に室温でエアスプレーによりコーティングし、室温で約15分乾燥して乾性潤滑被膜を形成した。得られたテストピースの乾性潤滑被膜について、上記実施例1と同様に表面性試験装置により潤滑性能を評価した結果、静摩擦係数は0.14及び平均動摩擦係数は0.09であった。 The obtained resin composition of Comparative Example 1 was coated on a plate-shaped test piece by air spray at room temperature and dried at room temperature for about 15 minutes to form a dry lubricating film. About the dry lubricating film of the obtained test piece, as a result of evaluating the lubricating performance with a surface property test apparatus in the same manner as in Example 1, the static friction coefficient was 0.14 and the average dynamic friction coefficient was 0.09.
[比較例2]
乾性潤滑被膜形成用の樹脂組成物として、市販品の東レ・ダウコーニング(株)製のモリコートD321R(商品名)を使用した。この樹脂組成物は、構成成分が樹脂としてチタネート樹脂及び固体潤滑剤として二硫化モリブデンとグラファイトを含み、噴射剤にDMEガスを配合したエアゾール製品である。
[Comparative Example 2]
As a resin composition for forming a dry lubricating film, a commercially available Molycoat D321R (trade name) manufactured by Toray Dow Corning Co., Ltd. was used. This resin composition is an aerosol product in which constituent components include titanate resin as a resin, molybdenum disulfide and graphite as a solid lubricant, and DME gas is blended in a propellant.
この樹脂組成物を板状試験片に室温でスプレーコーティングし、室温で約15分乾燥して乾性潤滑被膜を形成した。得られたテストピースの乾性潤滑被膜について、上記実施例1と同様に表面性試験装置により潤滑性能を評価した結果、静摩擦係数は0.28及び平均動摩擦係数は0.20であった。 This resin composition was spray-coated on a plate-shaped test piece at room temperature, and dried at room temperature for about 15 minutes to form a dry lubricating film. About the dry lubricating film of the obtained test piece, as a result of evaluating the lubricating performance with a surface property test apparatus in the same manner as in Example 1, the static friction coefficient was 0.28 and the average dynamic friction coefficient was 0.20.
[比較例3]
乾性潤滑被膜形成用の樹脂組成物として、市販品のファインケミカルジャパン(株)製のニューTFEコートスプレー(商品名)を使用した。この樹脂組成物は、構成成分が樹脂としてセルロース系樹脂、固体潤滑剤としてPTFE、溶剤としてトルエンとIPA等を含み、噴射剤にDMEガスを配合したエアゾール製品である。
[Comparative Example 3]
As a resin composition for forming a dry lubricating film, a commercially available New TFE coat spray (trade name) manufactured by Fine Chemical Japan Co., Ltd. was used. This resin composition is an aerosol product in which constituent components include a cellulose-based resin as a resin, PTFE as a solid lubricant, toluene and IPA as a solvent, and DME gas is blended in a propellant.
この樹脂組成物を板状試験片に室温でスプレーコーティングし、室温で約15分乾燥して乾性潤滑被膜を形成した。得られたテストピースの乾性潤滑被膜について、上記実施例1と同様に表面性試験装置により潤滑性能を評価した結果、静摩擦係数は0.11及び平均動摩擦係数は0.09であった。 This resin composition was spray-coated on a plate-shaped test piece at room temperature, and dried at room temperature for about 15 minutes to form a dry lubricating film. About the dry lubricating film of the obtained test piece, as a result of evaluating the lubricating performance using a surface property test apparatus in the same manner as in Example 1, the static friction coefficient was 0.11 and the average dynamic friction coefficient was 0.09.
上記した実施例及び比較例の潤滑性能の評価結果から分るように、実施例1及び2の樹脂組成物による乾性潤滑被膜の静摩擦係数及び平均摩擦係数は各比較例よりも低い値を示し、特に実施例1の樹脂組成物は静摩擦係数及び平均摩擦係数ともに最も小さい値を示している。従って、本発明の樹脂組成物を用いることによって、繰り返し摩擦に対する耐久性及び密着性に優れ、低摩擦摺動に適した乾性潤滑被膜を常温で簡単に形成することができている。 As can be seen from the evaluation results of the lubricating performance of the examples and comparative examples described above, the static friction coefficient and the average friction coefficient of the dry lubricating film by the resin compositions of Examples 1 and 2 show lower values than those of the comparative examples, In particular, the resin composition of Example 1 shows the smallest values of both the static friction coefficient and the average friction coefficient. Therefore, by using the resin composition of the present invention, it is possible to easily form a dry lubricating film having excellent durability against repeated friction and adhesion and suitable for low friction sliding at room temperature.
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105524382A (en) * | 2015-11-03 | 2016-04-27 | 南京肯特复合材料有限公司 | Heatproof wear-resistant PTFE plastic material and preparation method thereof |
KR20160096977A (en) * | 2015-02-06 | 2016-08-17 | 유옥수 | Friction coefficient decreases with diameter double-wall reinforcement, DC sewers |
JP2016193968A (en) * | 2015-03-31 | 2016-11-17 | 住鉱潤滑剤株式会社 | Composition for dry lubrication coating film formation |
WO2019202772A1 (en) * | 2018-04-19 | 2019-10-24 | 株式会社豊田自動織機 | Sliding member and method for producing same |
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2010
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20160096977A (en) * | 2015-02-06 | 2016-08-17 | 유옥수 | Friction coefficient decreases with diameter double-wall reinforcement, DC sewers |
KR101652041B1 (en) | 2015-02-06 | 2016-08-29 | 유옥수 | Friction coefficient decreases with diameter double-wall reinforcement, DC sewers |
JP2016193968A (en) * | 2015-03-31 | 2016-11-17 | 住鉱潤滑剤株式会社 | Composition for dry lubrication coating film formation |
CN105524382A (en) * | 2015-11-03 | 2016-04-27 | 南京肯特复合材料有限公司 | Heatproof wear-resistant PTFE plastic material and preparation method thereof |
WO2019202772A1 (en) * | 2018-04-19 | 2019-10-24 | 株式会社豊田自動織機 | Sliding member and method for producing same |
JP2019189679A (en) * | 2018-04-19 | 2019-10-31 | 株式会社豊田自動織機 | Slide member and manufacturing method thereof |
JP7010128B2 (en) | 2018-04-19 | 2022-03-04 | 株式会社豊田自動織機 | Sliding member and its manufacturing method |
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